Being a fan of Python, I am also trying to work on some Mozilla Release
Engineering bugs, but run into problems trying to replicate the dev
environment used. This area, while interesting, is not as well developed
in terms of documentation or process for outside contributors; their
wiki information on setting up a dev environment is somewhat geared
towards Mozilla employees.

But while I haven't made any real headway on any release engineering
bugs yet, I do have a partial dev environment up so that I can attempt
to tackle a subset of their bugs, mainly the ones that don't rely on
having permissions to Mozilla's massive build infrastructure. I also
want to get involved with Autoland after reading Lukas Blakk's (a
Mozilla Release Manager) blog post on Autoland.

All in all, I feel like I am well on the way to becoming a full-fledged
Mozilla contributor.